l4d2_m2_control.smx Entity error spam

[Owned67]

L 09/06/2014 - 15:28:18: SourceMod error session started
L 09/06/2014 - 15:28:18: Info (map "c1m1_hotel") (file "errors_20140906.log")
L 09/06/2014 - 15:28:18: [SM] Native "GetEntProp" reported: Entity 6 (6) is invalid
L 09/06/2014 - 15:28:18: [SM] Displaying call stack trace for plugin "l4d2_m2_control.smx":
L 09/06/2014 - 15:28:18: [SM] [0] Line 53, G:\L4D2\Backup_Myriapulse\Vanilla\addons\sourcemod\scripting\include\l4d2util_infected.inc::GetInfectedClass()
L 09/06/2014 - 15:28:18: [SM] [1] Line 100, G:\L4D2\Backup_Myriapulse\Vanilla\addons\sourcemod\scripting\l4d2_m2_control.sp::ResetAbilityTimer()
L 09/06/2014 - 15:56:07: Error log file session closed.